Figure 5

34-year old male patient with confirmed AS (duration of inflammatory back pain 13 years, BASDAI 4.9, HLA B27 positive). Inflammatory lesions of the anterior chest wall are shown in the manubriosternal joint (curved arrows) on coronal (left) and sagittal (right) STIR images. Inflammatory changes are seen in the lower thoracic spine and L1 (arrows).